# ULN2803A (Component)
## Description
Darlington transistor array driver
ULN2803A
SOP-18_L11.4-W7.6-P1.27-LS10.6-BL
LCSC Part Number: C845537
JLCPCB Part Class: Extended Part
Manufactured by UMW(友台半导体)
## Component Details
- **Owner:** lcsc
- **Created:** 11/5/2024
- **Last Updated:** 4/24/2025
- **Visibility:** Public
- **Manufacturer Name:** UMW(友台半导体)
- **Product Info Url:** https://lcsc.com/product-detail/Darlington-transistor-array-driver_UMW-Youtai-Semiconductor-Co-Ltd-ULN2803A_C845537.html
- **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410251531_UMW-Youtai-Semiconductor-Co---Ltd--ULN2803A_C845537.pdf
- **Manufacturer Part Number:** ULN2803A
- **JLCPCB Part Class:** Extended Part
- **Part Type:** Darlington transistor array driver
- **LCSC Part Number:** C845537
- **Package or Case Code:** SOP-18_L11.4-W7.6-P1.27-LS10.6-BL
- **Used in:** 329 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/uln2803a/stmicroelectronics.html?utm_currency=USD®ion=europe) | $1.0299 | 744K |
| [Digi-Key](https://www.digikey.com/en/products/detail/umw/ULN2803A/16705954) | $1.10 | 0 |
| [LCSC](https://www.lcsc.com/product-detail/C33962542.html) | $0.1545 | 2.7K |
| [Mouser](https://www.mouser.com/ProductDetail/STMicroelectronics/ULN2803A?qs=FOlmdCx%252BAA1lVc%2FYEXA4pg%3D%3D) | $1.68 | 34K |
| [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=ULN2803A) | N/A | N/A |
| [Verical](https://www.verical.com/pd/stmicroelectronics-bjt---darlington-ULN2803A-117279?utm_currency=USD) | N/A | N/A |
- **Part Type:** Transistors
- **Sub-Type:** Darlington
- **Manufacturer:** UMW
- **MPN:** ULN2803A
- **Mount Type:** PCB
- **Package / Case Code:** 18-SOP
- **Pin Count:** 18
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | Input | |
| 2 | Input | |
| 3 | Input | |
| 4 | Input | |
| 5 | Input | |
| 6 | Input | |
| 7 | Input | |
| 8 | Input | |
| 9 | GND | |
| 10 | COM | |
| 11 | Output | |
| 12 | Output | |
| 13 | Output | |
| 14 | Output | |
| 15 | Output | |
| 16 | Output | |
| 17 | Output | |
| 18 | Output | |
---
*Generated from [https://www.flux.ai/lcsc/uln2803a](https://www.flux.ai/lcsc/uln2803a)*